Saw-setting device



No. 622,|70. Patented Mar. 28, I899. W. 6. ROGERS.

SAW SETTING DEVICE.

(Application filed Nov. 5, 1898.)

(No Model.)

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NITE STATES PATENT OFFICE.

WVILLIAM G. ROGERS, OF DENVER, COLORADO.

SAW-SETTING DEVICE.

SPECIFICATION formingpart of Letters Patent No. 622,170, dated March 28, 1899.

Application filed November 5, 1898. Serial No. 695,615. (No model.)

To all whom it may concern:

Be it known that 1, WILLIAM G. ROGERS, a citizen of the United States of America, residing at Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in Saw-Setting De vices; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompany ing drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in saw-setting devices; and it consists of the features hereinafter described and claimed, all of which will be fully understood by reference to the accompanying drawings, in which is illustrated an embodiment thereof.

In the drawings, Figure 1 is a side elevation of my improved device shown in connection with a vise illustrated in cross-section. Fig. 2 is a top view of the device shown in detail. Fig. 3 is an end view of the movable jaw provided with the saw-tooth-engaging die and the adjustable gage.

Similar reference characters indicating corresponding parts in these views, let the nu meral 5 designate the stationary jaw of the device. This jaw is provided with a hook 5, adapted to engage and slide on the jaw-bar 6 of a suitable vise. The opposite extremity of this jaw is provided with ears 5", apertured to receive a pin 7, which passes through coinciding openings formed in ears 8 of the movable jaw 8. Below the ears of the jaw 5 is formed a face 5 which engages the sawblade below the teeth on one side, while the die 8 of the jaw 8 engages the teeth on the opposite side. Above this face a niche 5 is formed in the jaw to allow the bending or spreading of the teeth, as is required in sawsetting. In the lower side of the jaw 8, near the die extremity, is formed a threaded opening, in which is inserted a screw 9, forming a gage adapted to regulate the downward movement of the jaw 8 when the device is in use. The head or lower extremity of the screw is adapted to engage the jaw 6 of the vise, which forms a stop against the further movement of the jaw 8, which is provided with a handle 8 of suitable length to give the desired leverage for the easy operation of the aw.

A gage of this character is essential, since the saw-teeth must be equally bent or spread during the setting operation. The adjustable feature of the gage is also important, since saws require more or less set according to the purpose for which they are to be used. For instance, if the saw is for use in green or unseasoned wood, more set is required than when the wood is dry.

By means of the adjustable gage of my improved device the saw may be given any degree of set that may be required.

Having thus described my invention, what I claim is 1. In a saw-setting device, the combination of a jaw hooked to engage a jaw-bar of the vise and provided at its opposite extremity with apertured ears, and a face below the ears, another jaw having ears hinged to the ears of the first-named jaw and provided with a saw-tooth-engaging die located opposite the engaging face of the first-named jaw.

2. In a saw-setting device the combination of a jaw having a hooked extremity adapted to slide along the jaw-bar of the device, another jaw hinged to the first-named jaw and provided with a saw-tooth-engaging die, a face being formed on the hooked jaw below the hinge and adapted to cooperate with the die of the other jaw, and a gage for limiting the movement of the die-jaw.

3. In a saw-setting device the combination with a jaw adapted to maintain its position on the jaw-bar of a suitable device, another jaw hinged to the first-named jaw and provided with a saw-tooth-engagin g die, the first-named jaw having a face formed below the hinge to cooperate with the die of the other jaw and an adjustable gage attached to the die-jaw for the purpose set forth.

In testimony whereof I- affix my signature in presence of two witnesses.

WILLIAM G. ROGERS.

Witnesses A. J. OBRIEN, EDITH 'HIMswoRTH. 

